16 files changed, 53 insertions, 60 deletions

diff --git a/sound/soc/atmel/Kconfig b/sound/soc/atmel/Kconfig
index d1fcc816ce97..72b09cfd3dc3 100644
--- a/sound/soc/atmel/Kconfig
+++ b/sound/soc/atmel/Kconfig
@@ -26,7 +26,7 @@ config SND_AT91_SOC_SAM9G20_WM8731
 
 config SND_AT91_SOC_AFEB9260
         tristate "SoC Audio support for AFEB9260 board"
-        depends on ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
+        depends on ATMEL_SSC && ARCH_AT91 && MACH_AFEB9260 && SND_ATMEL_SOC
         select SND_ATMEL_SOC_SSC
         select SND_SOC_TLV320AIC23
         help
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 60de05525c06..a21ff459e5d3 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -367,7 +367,6 @@ static u64 atmel_pcm_dmamask = 0xffffffff;
 static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -376,14 +375,14 @@ static int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = atmel_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto out;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 pr_debug("atmel-pcm:"
                                 "Allocating PCM capture DMA buffer\n");
                 ret = atmel_pcm_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
index fcff58390848..d7dc9bde0976 100644
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c
@@ -421,7 +421,6 @@ static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
 static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -431,14 +430,14 @@ static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto out;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c
index 6ec3d41b9b6d..63205d723eab 100644
--- a/sound/soc/blackfin/bf5xx-i2s-pcm.c
+++ b/sound/soc/blackfin/bf5xx-i2s-pcm.c
@@ -260,7 +260,6 @@ static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
 static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -270,14 +269,14 @@ static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto out;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/blackfin/bf5xx-tdm-pcm.c b/sound/soc/blackfin/bf5xx-tdm-pcm.c
index 4406f9a865ae..254490cf1876 100644
--- a/sound/soc/blackfin/bf5xx-tdm-pcm.c
+++ b/sound/soc/blackfin/bf5xx-tdm-pcm.c
@@ -286,7 +286,6 @@ static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
 static int bf5xx_pcm_tdm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -295,14 +294,14 @@ static int bf5xx_pcm_tdm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto out;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 65bff3d30dd7..b26401f87b85 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -831,7 +831,6 @@ static u64 davinci_pcm_dmamask = 0xffffffff;
 static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret;
 
@@ -840,7 +839,7 @@ static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = davinci_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK,
                         pcm_hardware_playback.buffer_bytes_max);
@@ -848,7 +847,7 @@ static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
                         return ret;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = davinci_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE,
                         pcm_hardware_capture.buffer_bytes_max);
diff --git a/sound/soc/ep93xx/ep93xx-pcm.c b/sound/soc/ep93xx/ep93xx-pcm.c
index a2de9c42b702..3fc96130d1a6 100644
--- a/sound/soc/ep93xx/ep93xx-pcm.c
+++ b/sound/soc/ep93xx/ep93xx-pcm.c
@@ -286,7 +286,6 @@ static u64 ep93xx_pcm_dmamask = 0xffffffff;
 static int ep93xx_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -295,14 +294,14 @@ static int ep93xx_pcm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = ep93xx_pcm_preallocate_dma_buffer(pcm,
                                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         return ret;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = ep93xx_pcm_preallocate_dma_buffer(pcm,
                                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c
index 50cda9ea9156..9b8cf256847d 100644
--- a/sound/soc/jz4740/jz4740-pcm.c
+++ b/sound/soc/jz4740/jz4740-pcm.c
@@ -302,7 +302,6 @@ static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32);
 static int jz4740_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -312,14 +311,14 @@ static int jz4740_pcm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = jz4740_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto err;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = jz4740_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index 210438261a49..d4a17780cef4 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -315,7 +315,6 @@ static int kirkwood_dma_preallocate_dma_buffer(struct snd_pcm *pcm,
 static int kirkwood_dma_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret;
 
@@ -324,14 +323,14 @@ static int kirkwood_dma_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = kirkwood_dma_preallocate_dma_buffer(pcm,
                                 SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         return ret;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = kirkwood_dma_preallocate_dma_buffer(pcm,
                                 SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c
index c2bf172a196e..d34563b12c3b 100644
--- a/sound/soc/mid-x86/sst_platform.c
+++ b/sound/soc/mid-x86/sst_platform.c
@@ -446,13 +446,12 @@ static void sst_pcm_free(struct snd_pcm *pcm)
 
 static int sst_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int retval = 0;
 
         pr_debug("sst_pcm_new called\n");
-        if (dai->driver->playback.channels_min ||
-                        dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream ||
+                        pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 retval =  snd_pcm_lib_preallocate_pages_for_all(pcm,
                         SNDRV_DMA_TYPE_CONTINUOUS,
                         snd_dma_continuous_data(GFP_KERNEL),
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 52a0f634948e..a59bd352d342 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -378,7 +378,6 @@ static void omap_pcm_free_dma_buffers(struct snd_pcm *pcm)
 static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -387,14 +386,14 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = DMA_BIT_MASK(64);
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = omap_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto out;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = omap_pcm_preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index 797c3d5e79e5..427ae0d9817b 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -403,7 +403,6 @@ static u64 dma_mask = DMA_BIT_MASK(32);
 static int dma_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -414,14 +413,14 @@ static int dma_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto out;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = preallocate_dma_buffer(pcm,
                         SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index 2bcf75815624..c227c3163cae 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -387,7 +387,6 @@ static u64 idma_mask = DMA_BIT_MASK(32);
 static int idma_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -396,9 +395,10 @@ static int idma_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 
-        if (dai->driver->playback.channels_min)
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = preallocate_idma_buffer(pcm,
                                 SNDRV_PCM_STREAM_PLAYBACK);
+        }
 
         return ret;
 }
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index acbb96005a69..3986520b4677 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -169,8 +169,7 @@ static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
 static ssize_t codec_reg_show(struct device *dev,
         struct device_attribute *attr, char *buf)
 {
-        struct snd_soc_pcm_runtime *rtd =
-                        container_of(dev, struct snd_soc_pcm_runtime, dev);
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
 
         return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
 }
@@ -180,8 +179,7 @@ static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
 static ssize_t pmdown_time_show(struct device *dev,
                                 struct device_attribute *attr, char *buf)
 {
-        struct snd_soc_pcm_runtime *rtd =
-                        container_of(dev, struct snd_soc_pcm_runtime, dev);
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
 
         return sprintf(buf, "%ld\n", rtd->pmdown_time);
 }
@@ -190,8 +188,7 @@ static ssize_t pmdown_time_set(struct device *dev,
                                struct device_attribute *attr,
                                const char *buf, size_t count)
 {
-        struct snd_soc_pcm_runtime *rtd =
-                        container_of(dev, struct snd_soc_pcm_runtime, dev);
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
         int ret;
 
         ret = strict_strtol(buf, 10, &rtd->pmdown_time);
@@ -884,9 +881,9 @@ static void soc_remove_dai_link(struct snd_soc_card *card, int num, int order)
 
         /* unregister the rtd device */
         if (rtd->dev_registered) {
-                device_remove_file(&rtd->dev, &dev_attr_pmdown_time);
-                device_remove_file(&rtd->dev, &dev_attr_codec_reg);
-                device_unregister(&rtd->dev);
+                device_remove_file(rtd->dev, &dev_attr_pmdown_time);
+                device_remove_file(rtd->dev, &dev_attr_codec_reg);
+                device_unregister(rtd->dev);
                 rtd->dev_registered = 0;
         }
 
@@ -1061,7 +1058,10 @@ err_probe:
         return ret;
 }
 
-static void rtd_release(struct device *dev) {}
+static void rtd_release(struct device *dev)
+{
+        kfree(dev);
+}
 
 static int soc_post_component_init(struct snd_soc_card *card,
                                    struct snd_soc_codec *codec,
@@ -1104,11 +1104,17 @@ static int soc_post_component_init(struct snd_soc_card *card,
 
         /* register the rtd device */
         rtd->codec = codec;
-        rtd->dev.parent = card->dev;
-        rtd->dev.release = rtd_release;
-        rtd->dev.init_name = name;
+
+        rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
+        if (!rtd->dev)
+                return -ENOMEM;
+        device_initialize(rtd->dev);
+        rtd->dev->parent = card->dev;
+        rtd->dev->release = rtd_release;
+        rtd->dev->init_name = name;
+        dev_set_drvdata(rtd->dev, rtd);
         mutex_init(&rtd->pcm_mutex);
-        ret = device_register(&rtd->dev);
+        ret = device_add(rtd->dev);
         if (ret < 0) {
                 dev_err(card->dev,
                         "asoc: failed to register runtime device: %d\n", ret);
@@ -1117,14 +1123,14 @@ static int soc_post_component_init(struct snd_soc_card *card,
         rtd->dev_registered = 1;
 
         /* add DAPM sysfs entries for this codec */
-        ret = snd_soc_dapm_sys_add(&rtd->dev);
+        ret = snd_soc_dapm_sys_add(rtd->dev);
         if (ret < 0)
                 dev_err(codec->dev,
                         "asoc: failed to add codec dapm sysfs entries: %d\n",
                         ret);
 
         /* add codec sysfs entries */
-        ret = device_create_file(&rtd->dev, &dev_attr_codec_reg);
+        ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
         if (ret < 0)
                 dev_err(codec->dev,
                         "asoc: failed to add codec sysfs files: %d\n", ret);
@@ -1213,7 +1219,7 @@ static int soc_probe_dai_link(struct snd_soc_card *card, int num, int order)
         if (ret)
                 return ret;
 
-        ret = device_create_file(&rtd->dev, &dev_attr_pmdown_time);
+        ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
         if (ret < 0)
                 printk(KERN_WARNING "asoc: failed to add pmdown_time sysfs\n");
 
@@ -1311,8 +1317,8 @@ static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
 
         /* unregister the rtd device */
         if (rtd->dev_registered) {
-                device_remove_file(&rtd->dev, &dev_attr_codec_reg);
-                device_unregister(&rtd->dev);
+                device_remove_file(rtd->dev, &dev_attr_codec_reg);
+                device_del(rtd->dev);
                 rtd->dev_registered = 0;
         }
 
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index e174d0811dae..3ad1f59b8028 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1738,8 +1738,7 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
 static ssize_t dapm_widget_show(struct device *dev,
         struct device_attribute *attr, char *buf)
 {
-        struct snd_soc_pcm_runtime *rtd =
-                        container_of(dev, struct snd_soc_pcm_runtime, dev);
+        struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
         struct snd_soc_codec *codec =rtd->codec;
         struct snd_soc_dapm_widget *w;
         int count = 0;
diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index 90345ee138f3..c22431516ab2 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -330,7 +330,6 @@ static u64 tegra_dma_mask = DMA_BIT_MASK(32);
 static int tegra_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
         struct snd_card *card = rtd->card->snd_card;
-        struct snd_soc_dai *dai = rtd->cpu_dai;
         struct snd_pcm *pcm = rtd->pcm;
         int ret = 0;
 
@@ -339,14 +338,14 @@ static int tegra_pcm_new(struct snd_soc_pcm_runtime *rtd)
         if (!card->dev->coherent_dma_mask)
                 card->dev->coherent_dma_mask = 0xffffffff;
 
-        if (dai->driver->playback.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
                 ret = tegra_pcm_preallocate_dma_buffer(pcm,
                                                 SNDRV_PCM_STREAM_PLAYBACK);
                 if (ret)
                         goto err;
         }
 
-        if (dai->driver->capture.channels_min) {
+        if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) {
                 ret = tegra_pcm_preallocate_dma_buffer(pcm,
                                                 SNDRV_PCM_STREAM_CAPTURE);
                 if (ret)